Enameled electric percolator



" Dec. 11, 1928. 1,694,570

V. WATTS ENANELED ELECTRIC PERCOLATOR Filed Nov. 16, 1927 l I I M 25 ByJ gmtol l rlzer I Vafls Patented Dec. 11, 1928. U N l TED S TA TfEi-S'PAT GFFICE,

WERNER WATTS," OF'ALILANCE, OHIO, ASSIGNOR TU THEYSEBRZIINTEEN'UFACT'UBHVG CORPORATION; OF SEEKING; OHIO; A CORPORATIW OF OHIO;

immrmnn n-nzo'ram rmrootyrom Arpplicationflled November 16,1022.se'rial'Notflfl'flwt My invention relates to electric percolators Fig.3, ,a: fragmentary vertical axial secfor making beveragessuch-ascofieeand the tional View thereof as on line. 3'+3, Fig, 2; like,andwhichheretofore have been made of and metals such as aluminum, nickelplatedbrass, Fig. 4,. a: fragmentary sectional view simand the like, andin which the contained ilar to Fig. 3 of a: modified embodimentof 60bevemgahaselnenexposed directly to metallic the inventions surfaces.Similar numerals refer to similar parts A; beveragethus directlyexposedto metal throughout: the drawin'gsa veryiifvequently'acquires'anundesirabletaste The improvedenameled electric percolator due to;chemicalaction between the beverage indicated generally at liincludessa'percolator 65 and: the metal pot 2, the upper port-ionsof which. may? bePorcelain enamelphasibeen used for pro off-any usualiconstruction;andprovided with v-idi'ngs'ai nonmetalliopnotectivercoating and.aniimprovedbottom: wall 3 having a depend for; enhancing theappearance" of kitchen ingcannular water leg tformed therein, thusutensilstobeiheated directly by aniexternal providing. atathe: bottomaofthe'rpot an an- 70 source of. heat but it has heretofore been nulargroove 5 whichzwill be filled with: a deemed; impractical. to provide.an electric relatively thin annular ring of liquid when percolatori ofusual. conformation with. a the pot isubeing-msedto makeaibeverage.porcelain" enamel coating,.by reason of the The outer side: wall 6 ofthe water leg: is

factithattheusual conformation ofan elecpreferably spacedi a substantialdistance in- 7 tric; percolator' would not. permit;. if coated wardlyfrom the! side wall37 i ofilthepoa and with: enamel efiicienta heating:byv the usual the inner sidewalli8 of theiwater: legifornis electricheatingzunit'. with: the central: plate: 9, a1 cup 'inwhich isAccordingly theiobjects of the present im-. snugly, ,fitted-anelectricheatin'giunit10', havprovementsare toprovidean enameled elecing.terminals 11. for connection through a tric percolator having"a"satisfactory andsuitabletcord'set, not showmwithan electric eificient'rate of heat. transfer; from a usual power line; electricheating-iunit-to the beverage contained The electric'heatingiunit 10may-be removintlie perc'olator, by reason ofthe improved ablymaintainedlinrthercup asby means of structural conformationiofethepercolator and screws 12 screwedzini'a bridge 13; the endsitsrelationship with thez-heating: unit. of. whichmay'be secured tothe'bo'ttom wall These objects are attained inthc improved 1420f: thewater leg: enameled electric. percolator hereinafter'set A tubular base15, preferably outwardly fol-thin detail and whichimay'bedescribed inflaring at its lower end, is provided for the 5 general .terms as.including. a pot. preferably pots. and includes an inwardly extending 90made of sheet iron, 9. tubular'basefor the pot flange 16 at the upperend of the base and secured thereto and forming adome thereabuttingitheouter peripheral bandit of the with, a removable bottomcover plate forthe' pot bottom. at the outside of thev annular dome baseprovided on its inner surface with water legg l;

40 afiprotective coating; of a heat insulatorzsuch Suitable feet-18 madeofa suitable heat 9:, as asbestos, anzannular waterlegrdependinginsulator are-secured. at thelower edge? of fromthe pot bottom and;inwardly'spaced the base 15-for elevatingxthe samevfromxthe from theinner base wall and formingtacup, tabletop 119. and an electric heatingunit fitting in the The base 15'and the pot bottom?) form a cup andhavingtitstop-andsidesenclosed by dome,iand'the base isengagedvat-itsilower m0 thefwalls of thecnp: open end with a coverplate20 removably Preferred embodiments of the invention connected with thebridge 13 as by means of are illustrated in the enclosed drawing formacentral screw 21, thereby providing removing part hereof, in which ablemeans connecting the base with the pot;

Figure 1 is an elevation view of one emand the inner surface of thecover plate is bodiment of the improved enameled electric preferablyprovided with a sheet coating 22 percolator; of a heat insulator such asasbestos.

Fig. 2, a bottom plane view thereof as in The spacing of the outer sidewall 6 of the the direction of the arrows 22, Fig. 1, the water leg asubstantial distance inwardly 66 bottom cover plate being removed; fromthe side wall 7 of the p t and the tubular wall of the base 15 providesan annular heat retaining air chamber 23 on the outside of the ater legThe pot 2 and the base 15 are coated preterz bly with porcelain enamel2i and the electric heating unit tits as snugly as practi cable in thecup formed by the central plate 9 and the inner rall 8 of the water leg.

The relatively thin annular ring of liquid in the water leg when the potis being used is heated more rapidly than the mai; body of liquid in thepot. and consequently when yaporization commences a circulation is setup in the pot from the hotter liquid in the water leg to the coolerliquid above.

Heat is delivered from the unit 0 to the liquid in the water leg throughthe inner side wall 8 of the water leg fitting snugly bout the side ofthe unit. and heat flows th top of the unit to the central plate Theproyision of the sheet coating asbestos, on the inner surface of thecorn. plate 20, prevents the top ol the table which the percolator mayrest tr' burned or scorched, ant retains he We dome formed by the basein t toni The use of the foregoing conformation for the pot in coml.ination with the electric heating unit, permits the use of the desiredproect-ive coating of porcelain enau l. and instead of increasing thetime required to heat up for percolation the beverage in the pot.reduces this time as compared with time 1 quired for rdinaiy metallicpercolators; and the improved enameled electric percola "or or thepresent construction retains heat longer than percolators of otherconstruction.

In the modified embodiment of the improved percolator illustrated inFig. 4-, the base 15 is secured to the pot 2 as by spot welding" theabutting flange 16 with the band 17.

I claim:

1. A pot including tubular side a bottom wall. a tubul: r base securedat upper end to the potand s iacin 51 the pot l tom wall above its lowerend. a water Formed in the pot bottom and depen downwardly therefrom.the outer tl wall or water leg being;- spaced inwardly troni tubularwalls of the pot and base, and inner wall of the water leg and a centralplate of the pot bottom. forming; a downwardly opening cup, and aheating unit fitting snugly in the cup.

It pot incl g" a tubular side wall and a bottom wall. a tubular basesecured at its upper end to the pot and, notic ng the pot bottom wallabove its lower end. an annular water lee termed in the pot bottom anddependinrr downwardly t'i in, the outer wall or the water l1. 'nwardlytr-om the nbular side wall and ar haste secu d at its and spacin;- thepot end, a water leg lac-Atom and depending do wardijf tlu oi ut r wallot the wan r i 2; JL L paced inwardly from the tubular walls ot the potand e. and the 1 s. 11 .1: 1 v. i. n i Q lll lQl. Man or lie Mater legand a central plate or the pot bottom term; a downwardly opening cup andthe pot and base brin coated with porcelain enamel. and a y in the cup.

' l 'de wall and V secured at its 0 "he pot and. spao-ng the pot botw iabove it lower end, an annular eg; formet 1n the pot hotter; andderardly therefrom. the outer 1 the "w .l le bein;' spaced inwa dly cot' the po and base,

the water leg and a cente ot the pot bottom forming a downwardly openingcup, and the pot and base being coated with porcelain enamel, and aheating unit fitting snugly in the cup.

A pot includii'lp; tubular side wall and a. bottom wall. a tubular basesecured at its base. and a coalinn of heat in ulzit r upon theinhereunto SUUSJII JOCl my name.

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